The Pearson and Spearman correlation coefficients: Question 14 options: A) Are equivalent measures of linear association B) Provide ways of quantifying the association between 2 continuous variables C) Require continuous variables that are independent from one another D) Are both insensitive to outliers E) Both A and B are true F) Both A and C are true G) Both C and D are true

Answered: Image /qna-images/answer/05d6d1f8-1409-45a1-b147-5dfa50e15807.jpg

Answered: The Pearson and Spearman correlation…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Let u₁, U2, U3, U4, U5 E R and define ū = U1 ՂԱԶ U3 ՂԱՃ U5 and = 2u1 +3 2u2 +3 2u3 +3 2u4 +3 2u5 +3 What is the correlation coefficient between u and ? Justify your answer.
Which of the following best describes the relationship between the variables on the scatter plot below? 11 10 15 4 3. 2 1 1234 56 7 8 9 10 11 12 13 O A. linear association OB. no association OC. non-linear association OD. linear and non-linear association
The top portion of the Pearson's r correlation coefficient equation calculates the______ whereas the bottom portion calculates the___ 1)variance of x and the variance of y; covariance between variables x and y 2)covariance of variable ×; covariance of variable y 3)covariance between variables x and y; variance of x and the variance of y 4)covariance of variable v: covariance of variable x.
1. The table below gives the number of hours a student spent studying for a test and their grade. a.) Draw a scatter plot of the data. Hours Spent Studying 3 2 2 5 1 0.5 4 3 Grade on Exam 84 77 92 70 60 90 75 b.) Draw the best fit line through the points (5,92) and (1, 70). Grade on Exam 90 80 70 60 c.) Is the correlation positive, negative, or none? f.) Write the equation of the best fit line. 50 d.) Find the slope of the best fit line: (5, 92) & (1,70) (round to one decimal) 0 2 4 6 8 10 Hours Spent Studying e.) What does the slope mean? T1-04 Plus TEXAS g.) Predict the grade for a student who studied for 2.5 hours. Is this an extrapolation or interpolation?
8
Which of the following linear correlation coefficient suggest a perfect negative linear relationship between two variable value?A) r = 0.327 B) r = -0.721 C) r = 0 D) r = 1.6 E) r = -1
As a result of the research, it was concluded that there is no relationship between the two variables. What is the value of the correlation coefficient?A) 0,0B) 0,75C) 0,25D) 0,50
2. Two fair dice are thrown. Let U be the minimum score of the two dice and let V be the maximum score of the two dice. a. Display f(u,v) in a table. b. Find the covariance and correlation between U and V.
38 - As a result of the research, it was concluded that there is no relationship between the two variables. What is the value of the correlation coefficient? O A) 0,25 O B) 1,0 O C) 0,50 O D) 0,0 O E) 0,75
4) The following data gives the distribution of scores of 10 students in mathematics and statistics in a test. Find the correlation coefficient r (X,Y). Scores in Mathematics(X): 27 31 32 26 37 Scores in Statistics (Y): 31 34 26 32 37 a) - 0.359 b) 0 - 0.953 c) - 0.539 d) - 0.395 35 35 26 28 29 38 32 39 33 32
1) Check Image Best Actress Best Actor 28 41 30 38 30 40 62 47 32 47 34 48 44 64 28 52 60 41 23 54 44 44 51 32 2) The linear correlation coefficient is r= (Round to three decimal places as needed.) 3) Determine the null and alternative hypotheses. H0: ρ H1: ρ (Type integers or decimals. Do not round.) 4) The test statistic is t= (Round to three decimal places as needed.) 5) The P-value is (Round to three decimal places as needed.) 6) Because the P-value of the linear correlation coefficient is? the significance level, there? sufficient evidence to support the claim that there is a linear correlation between the ages of Best Actresses and Best Actors. 7) Check Image
Which of the following scatter plots that true linear association?

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	A) Are equivalent measures of linear association
	B) Provide ways of quantifying the association between 2 continuous variables
	C) Require continuous variables that are independent from one another
	D) Are both insensitive to outliers
	E) Both A and B are true
	F) Both A and C are true
	G) Both C and D are true